August — December 1SS9.] 



PSYCHE. 



255 



Calotermes flavicollis. 

 1. Youngest lar\'ae. 



2. Larvae unfit for reproduction. 



5. Soldiers. 6. Nymphs. 



3. Larvae fit for reproduction. 



Supplementary royal pairs. 3. 



7. Supplementary royal pairs. 4. 



S. Winged forms. 9. Supplementary royal pairs. 5. 



10. True royal pairs. 

 .. Found only when No. 14, 15 and 1 1 fail, or the last two present in insufficient numbers. 



2. " " " " 14, 15 and 4 " " " " " represented in insufficient numbers. 



3. " " " " 10, 7 and 9 fail. 



4. " " " " 10, 9 and 4 fail. 



5. " " " " 10, 7 and 4 fail. 



NOTES ON ASILIDAE. 



BY S. W. WILLISTON. NEW HAVEN, CONN. 



In the preparation, some time ago, of 

 a catalogue of the South x\inerican 

 asi/idae^ and a partial study of a Bra- 

 zilian collection, I made a numUer of 

 notes, some of which seem of sufficient 

 interest to publish. The catalogue in- 

 cludes no less than five hundred and 

 forty names, not counting known syno- 

 nyms, located under seventv-seven 

 genera. The determination of species 

 from among some of these is a dreary 

 task, and in such genera as Erax., with 

 its seventy-six "species," or Mallopho- 

 ra^ w^ith fifty-six, almost impossible, 

 save by the aid of large collections. 

 Undoubtedly there are many synonyms 

 among the names, yet enough must 

 remain to demonstrate the richness of 

 the South American fauna in this fom- 

 ily. 



In a comparison of the generic names 

 I have found several preoccupied, for 

 which I would propose the following : 



For Lapar?is Loew, non Billberg, Neo- 

 LAPARUS ; for Cyli7idrophora Philippi, 

 Lynchia, in honor of Enrique Lynch 

 A. ; for Phoneiis Macquart, Neopho- 

 net;s ; and, by the strict rights of 

 priority, in which I fully believe, Neo- 

 7noctherus O. S. must give place to 

 Heligmoneura Bigot, and A)7dreiio- 

 sottia Rondani to Nusa Walker. 



It is very singular that Schiner, with 

 his entomological acuteness should have 

 so misunderstood the genus Senobasis 

 Macquart, as he seems to have done. 

 Macquart's characters \^'ere as follows : 

 "Characteres generiques des Dasy- 

 pogons. Troisi^me article des antennes 

 a base tr^s menues et extr^mlte fort 

 renflee et ovale. Abdomen a base re- 

 tr^cie ; armature copulatrice $ a pieces 

 lat^rales en forme de crochets allonges. 

 Cuisses nues. Ailes : quartrieme cellule 

 posterieure fermee, a nervure terminale 

 arrondie." In his figures of ^S". analis 



